Department of Defense NAICS 541990 and PSC AP51 contractors

All Other Professional, Scientific, and Technical Services. R&D- NATURAL RESOURCE: MARINE AND OCEANOGRAPHIC (BASIC RESEARCH). Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541990 · PSC AP51

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$6,745,000

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC AP51

Etrac, A Woolpert Company

San Rafael, CA

Etrac, A Woolpert Company is a federal category business profile based in San Rafael, CA. The current public data layer shows $10,944,093 in visible federal obligations across 17 awards or transactions. Department of Commerce appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541370 (Surveying and Mapping (except Geophysical) Services). The profile also shows meaningful product and service activity in PSC C219.

$6,745,000